Home / 1,213,335.90-1,820,003.85-985,013.10

Finding the Fourth Proportional to 1,213,335.90, 1,820,003.85 and 985,013.10

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Solution

The fourth proportional to 1,213,335.90, 1,820,003.85 and 985,013.10 is: 1,477,519.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,335.90 : 1,820,003.85 = 985,013.10 : x
  2. Step 2: Convert to fraction form
    1,213,335.90/1,820,003.85 = 985,013.10/x
  3. Step 3: Cross multiply
    1,213,335.90x = 1,820,003.85 × 985,013.10
  4. Step 4: Simplify right side
    1,213,335.90x = 1,792,727,634,300.44
  5. Step 5: Solve for x
    x = 1,792,727,634,300.44/1,213,335.90
  6. Step 6: Final answer
    x = 1,477,519.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.